CN102280000A - Laser alarm - Google Patents
Laser alarm Download PDFInfo
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- CN102280000A CN102280000A CN2011101587283A CN201110158728A CN102280000A CN 102280000 A CN102280000 A CN 102280000A CN 2011101587283 A CN2011101587283 A CN 2011101587283A CN 201110158728 A CN201110158728 A CN 201110158728A CN 102280000 A CN102280000 A CN 102280000A
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Abstract
The invention relates to a laser alarm which comprises laser probes, a photoelectric division circuit and a signal processing circuit. The laser probes performs a photoelectric conversion to a laser signal after receiving the laser signal and sends a voltage signal to the photoelectric division circuit. The photoelectric division circuit outputs the signal to the signal processing circuit after carrying out a division processing to the signal. The signal processing circuit calculates an angle and a frequency of the laser. In the invention, the laser alarm, which possesses a photoelectric division capability, can realize a 30 DEG resolution in a 360 DEG scope by using eight laser probes.
Description
Technical field
The present invention relates to the photoelectron technology field, especially a kind of laser avoidance device of laser warning technology.
Background technology
Utilize the laser warning technology effective recognition enemy to threaten and the threat orientation, can effectively protect our visual plant and facility.
What traditional laser avoidance device adopted usually is 1 corresponding visual field of probe, need realize in 360 ° of scopes that even 30 ° resolving power just needs the laser probe of 12 30 ° of visual fields to make up; And the laser avoidance device that possesses photoelectricity segmentation ability described in the patent of the present invention, enough 8 laser probes of energy are implemented in the resolution power of interior 30 ° of 360 ° of scopes.
Summary of the invention
The technical problem to be solved in the present invention is: propose a kind of laser avoidance device that possesses photoelectricity segmentation ability, it has characteristics such as simple in structure, that precision is high, circuit is simple.
The technical solution adopted in the present invention is: a kind of laser avoidance device, comprise laser probe, photoelectricity sub-circuit and signal processing circuit, and described laser probe realizes that in 360 ° of scopes the number of 30 ° of resolving powers is 8.
After laser probe receives laser signal, convert the laser signal that receives to voltage signal by electrooptical device; The photoelectricity sub-circuit segments it after converting the voltage signal of 8 laser probes to digital signal after sampling the voltage signal of laser probe; Information such as the angle of signal processing circuit output irradiating laser after receiving photoelectricity sub-circuit segmentation signal and frequency.
Specifically,
Described laser probe is made up of optical antenna and photoelectric switching circuit, and the visual field of described optical antenna is 60 °, and it is 15 ° or 30 ° that two adjacent in twos laser probe visual fields have overlapping, overlapping angle.The present invention increases the optical antenna visual field and is used to realize that the visual field of adjacent laser probe is overlapping, thereby optically guarantees the feasibility of segmentation.
Described photoelectricity sub-circuit is made up of photoelectric sampling circuit and sampling processing circuit.Photoelectric sampling circuit is according to the characteristic of electrooptical device, to the maintenance of sampling of the output signal of laser probe, and utilize in the overlapped fov scope, adjacent laser probe all has the characteristics of signal output, voltage signal to adjacent laser probe carries out Subdividing Processing, output angle numerical value, thus realize improving the design factors resolving power.
Described signal processing circuit: signal processing circuit is mainly added up the time interval of photoelectricity sub-circuit output angle numerical value and is calculated laser frequency, and carries out the output of comprehensive back with angle value.
The invention has the beneficial effects as follows:, therefore can realize 30 ° angular resolution, and traditional approach needs 12 laser probes with 8 laser probes owing to adopt the photoelectricity subdivide technology; Because the minimizing of laser probe makes the alarm overall weight that bigger reduction be arranged, the one-piece construction of simplification.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is that structure of the present invention is formed schematic block diagram;
Fig. 2 is a photoelectricity Principle of sub-division synoptic diagram of the present invention.
Embodiment
The present invention is further detailed explanation with preferred embodiment in conjunction with the accompanying drawings now.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Figure 1, a kind of laser avoidance device, comprise laser probe, photoelectricity sub-circuit and signal processing circuit, described laser probe carries out opto-electronic conversion to it after receiving laser signal, voltage signal is sent to the photoelectricity sub-circuit, the photoelectricity sub-circuit carries out exporting to signal processing circuit after the Subdividing Processing to signal, is calculated the angle and the frequency of laser by signal processing circuit.
The visual field of described optical antenna is 60 °, makes that adjacent in twos laser probe visual field overlaps, and shown in Figure 2, each field range is divided into 15 °, 30 ° and 15 ° of three part or 30 ° and 30 ° of two parts.
When the irradiating laser direction is in 30 ° of scopes, then can only there be a laser probe to receive this signal; When the irradiating laser direction is in 15 ° of scopes, then have two adjacent laser probes and receive this signal, can realize the differentiation and the differentiation of angle by differentiation to two signal intensities.
Just the specific embodiment of the present invention of describing in the above instructions, various not illustrating is construed as limiting flesh and blood of the present invention, the person of an ordinary skill in the technical field after having read instructions can to before described embodiment make an amendment or be out of shape, and do not deviate from essence of an invention and scope.
Claims (3)
1. laser avoidance device, it is characterized in that: comprise laser probe, photoelectricity sub-circuit and signal processing circuit, described laser probe carries out opto-electronic conversion to it after receiving laser signal, voltage signal is sent to the photoelectricity sub-circuit, the photoelectricity sub-circuit carries out exporting to signal processing circuit after the Subdividing Processing to signal, is calculated the angle and the frequency of laser by signal processing circuit.
2. laser avoidance device as claimed in claim 1, it is characterized in that: described laser probe is made up of optical antenna and photoelectric switching circuit, the visual field of described optical antenna is 60 °, and it is 15 ° or 30 ° that two adjacent in twos laser probe visual fields have overlapping, overlapping angle.
3. laser avoidance device as claimed in claim 1 is characterized in that: described laser probe realizes that in 360 ° of scopes the number of 30 ° of resolving powers is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110158728 CN102280000B (en) | 2011-06-14 | 2011-06-14 | Laser alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110158728 CN102280000B (en) | 2011-06-14 | 2011-06-14 | Laser alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102280000A true CN102280000A (en) | 2011-12-14 |
| CN102280000B CN102280000B (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110158728 Active CN102280000B (en) | 2011-06-14 | 2011-06-14 | Laser alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102280000B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114511982A (en) * | 2022-04-19 | 2022-05-17 | 亿慧云智能科技（深圳）股份有限公司 | Smoke alarm method and intelligent smoke alarm |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415936A (en) * | 2002-08-08 | 2003-05-07 | 天津大学 | Survey meter for measuring distance between trailers of train and measuring method |
| CN1431461A (en) * | 2002-12-13 | 2003-07-23 | 华中科技大学 | Two dimensions length measurement unit |
| US20050073389A1 (en) * | 2003-10-01 | 2005-04-07 | Chandley Adrian Mark | Systems and methods for deterring theft of electronic devices |
| CN1624493A (en) * | 2003-12-04 | 2005-06-08 | 戴永江 | Laser aiming device in free space optical communication system |
| CN202102551U (en) * | 2011-06-14 | 2012-01-04 | 常州第二电子仪器有限公司 | Laser warner |
-
2011
- 2011-06-14 CN CN 201110158728 patent/CN102280000B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415936A (en) * | 2002-08-08 | 2003-05-07 | 天津大学 | Survey meter for measuring distance between trailers of train and measuring method |
| CN1431461A (en) * | 2002-12-13 | 2003-07-23 | 华中科技大学 | Two dimensions length measurement unit |
| US20050073389A1 (en) * | 2003-10-01 | 2005-04-07 | Chandley Adrian Mark | Systems and methods for deterring theft of electronic devices |
| CN1624493A (en) * | 2003-12-04 | 2005-06-08 | 戴永江 | Laser aiming device in free space optical communication system |
| CN202102551U (en) * | 2011-06-14 | 2012-01-04 | 常州第二电子仪器有限公司 | Laser warner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114511982A (en) * | 2022-04-19 | 2022-05-17 | 亿慧云智能科技（深圳）股份有限公司 | Smoke alarm method and intelligent smoke alarm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102280000B (en) | 2013-02-13 |
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